Need to talk to someone

I haven't been able to work out what I wanted to say but I think that it is this:
I need to talk to some people who know where I'm coming from, as in, really know where I'm coming from. I seem to have become distant from my friends, and my girlfriend and I are having a really bad patch at the moment. She is upset, and I want to help. But I can't do anything.
I need to talk to people who know what I feel like and who can relate.
I am 22, male and study in London.
I don't know what the point is in doing anything sometimes, yet I am so priviledged.
If there is anyone else roughly the same age, similar situation, anything, please post back.
I need to talk about what gets me down, and I want to listen to others just as much - because it helps me.